Doefee



(No Model.)

C. W. BOMAN.

LEAD' 0R GRAYON HOLDER.

Patented Apr.3, 1883.

By his Attorney NAN@ n PETERS, mo-mbognpmf. washington. n. c.

2o as the type.

UNITED STATES PATENT vISEEICEo CLAES W. BOMAN, OF NEW YORK, N. Y.,ASSIGNOR TO JOSEPH REOKEN- DORFER, OF SAME PLACE.

LEAD OR CRAYON HOLDER.-

SPECIFICATION formingpart of Letters Patent NJ. 275,125, dated April 3,1883.

Application tiled December 9,1882.

To all whom 'it may concern Be it known that I, CLAES W. BOMAN, ofthepcity, county, and State of NewYork, have invented a certain new anduseful Improvement in Lead or Crayon Holders, ot' which the following isa specification, reference being had to the accompanying drawings, inwhich- Figure 1 is a longitudinal central section of the holder. Fig. 2is a side elevation, on an :o enlarged scale, ot' the metallic sleeve ortip.

Fig. 3 is an elevation ot' the jaws and tube detached. Fig. 4 is anelevation of the stem proper. Fig. 5 is a longitudinal central sectionofthe front part of the stem, representing a modification hereinafterreferred to.

This invention is an improvement on that hind of lead or crayon holderof which the device shown and described in Letters Patent No. 114,893,of May 16, 1871, may be taken The holder described in those LettersPatent possessed decided advantages on the score of simplicity andcheapuess; but, on the other hand, the lead was liable to slip in thejaws, and thejaws in time wouldlose their springiness in a measure andwould become A set, and by reason ot these serious disadvantages whichwere developed in the practical manufacture and use of that holder itceased to have much value in the market. To

3o remove these objections various remedies were tried'-t`or example,those described in Letters Patent N o. 209,449, ot' October 29, 1878.With the same end in view other expedients which have not been patentedwere resorted to. For

instance, the wooden jaws formed in one piece with the handle were doneaway with, and the jaws were formed by slitting a conical metal tip,which terminated in a cylindrical part attached to the wooden handle,and screw-threaded to re- 4o ceive the correspondingly-screw-threadedend of a metal clamping-sleeve; and in another case metal jaws wereattached to the wooden handle, and the latter was prolonged by a metalferrnle which at its extremity was internally screw-threaded to receivethe screwthreaded end ot a clamping-sleeve. These expedients, however,insome instances, proved practically ineffective, and in other cases, evenwheretheefciency was 1n a measure increased,

(No model.)

this was counterbalanced, and perhaps more than counterbalanced, by theincreased cost ot manufacture.

In my mprovcd'holder I have aimed to combine the advantages of theseveral kinds of holders above referred to without the disad- 4 vantageswhich attach to any of them separately considered.

My holder consists of three parts, viz: tirst, a wooden stem, A, thatconstitutes the handle, an external screw-thread, a, is cut in it on itsfront end, and it is centrally or axially bored from the front with ahole, b, 'of' a diameter to receive the lead; second, metallicspring-jaws B, which are set so as to. normallystand apart, and areinserted into the hole b, being for the purpose prei'erablyformed uponthe end ot a metal tube, B', which is driven into and serves as aliningfor the hole b; and, third, a sheetmetal conical clamping tip or sleeve,C, termihating at the rear in a cylindrical part, in which is formed (byspinning) ascrew-thrcad, c, to cngage the screw-thread on the end ot'stem A. The tip G'resembles substantially the clamping device in theLetters Patent above referred to. The spring-metal jaws B are easilyandcheaply made, and are inserted in the"hole b with entire facility. Theyare very effective, never losing their resiliency, and always act-- ingtolgrasp the lead firmly when they are compressed. The stem A, providedwit-h the hole b and screw-thread a, is made at very small cost and withgreat rapidity and ease, and these parts can be assembled and fittedtogether without requiring skilled labor.

The device as a whole can be made at a very low cost, and is entirelyefficient.

I remark,in conclusion, that, if deemed pret'- erable, thescrew-threaded extremity ot' the wooden stem A can be sheathed in metal,as indicated in Fig. 5, where the screw-threaded end ot' the stemcarries an external metal ferrule, d, in which, after it is fitted onthe stem, is spun a screw-thread, which enters and coincides with thatalready cut in the stem. This, however, is a nicety, not a necessity.The stem, also, can be made ot' papier-mache or analogous material,instead ot wood; but the latter material is the preferred one.

What I desire to secure hy Letters Patent A lead and crayon holderconsisting of the stem A, terminating at the front in a. screwthread, a,and provided with the axial hole b, combined with the' metallicspringjaws B, in-

serted and held in said hole, andthe G, as herenbefore set forth.

In testimony vwhereof I have hereunto set my hand this 28th day ofNovember, 1882.V

CLAES W. BOMAN.

Y Witnesses:

LEOPOLD ANSBAOHER, JOE W. SWAINE.

